VIM editor deletes all file contents

One 、 Preface

in order to 1024 Medal charge ！G2 come on. , We must eliminate DWG！！！ cheer up ！

Two 、 hydrological

1、ESC
2、gg  Back to the top 
3、 enter line number , such as 10000, Make sure this line number is larger than the maximum line number of the current file , You can delete them all 
4、dd 
 notes ： 2,3,4 There is no need to press the space , Continuous operation is enough 
5、dd Later, I found that it had been completely deleted , You can re edit 

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